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dc.contributor.authorBurford, Michele A
dc.contributor.authorCook, Andrew J
dc.contributor.authorFellows, Christine S
dc.contributor.authorBalcombe, Stephen R
dc.contributor.authorBunn, Stuart E
dc.contributor.editorA J Boulton, K Hunter
dc.date.accessioned2017-05-03T14:13:29Z
dc.date.available2017-05-03T14:13:29Z
dc.date.issued2008
dc.date.modified2009-08-18T05:57:00Z
dc.identifier.issn1323-1650
dc.identifier.doi10.1071/MF07159
dc.identifier.urihttp://hdl.handle.net/10072/22082
dc.description.abstractDryland rivers are characterised by highly pulsed and unpredictable flow, and support a diverse biota. The present study examined the contribution of floodplain sources to the productivity of a disconnected dryland river; that is a waterhole, after a major overland flood event. Rate measures of productivity were combined with stable isotope and biomass data on the food web in the waterhole and floodplain. The present study estimated that 50% of the fish carbon in the waterhole after flooding was derived from floodplain food sources. In the few months after retraction of the river to isolated waterholes, the large biomass of fish concentrated from the flooding decreased by 80%, most likely as a result of starvation. Based on the development of a carbon budget for the waterhole, mass mortality is hypothesised to be the cause of the high rates of heterotrophic production in the waterhole. The present study suggests that floodplain inputs are important for fuelling short-term production in waterholes, but via an unconventional pathway; that is, fish mortality. The episodic nature of flooding in dryland rivers means that changes in flow regimes, such as water regulation or abstraction, will reduce flooding and hence floodplain subsidies to the river. This is likely to have significant impacts on river productivity.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent91799 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_AU
dc.publisherCSIRO Publishing
dc.publisher.placeAustralia
dc.publisher.urihttp://www.publish.csiro.au/journals/mfr
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom224
dc.relation.ispartofpageto234
dc.relation.ispartofjournalMarine and Freshwater Research
dc.relation.ispartofvolume59
dc.rights.retentionY
dc.subject.fieldofresearchFreshwater Ecology
dc.subject.fieldofresearchcode060204
dc.titleSources of carbon fuelling production in an arid floodplain river
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2008 CSIRO. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2008
gro.hasfulltextFull Text
gro.griffith.authorBunn, Stuart E.
gro.griffith.authorBalcombe, Stephen R.
gro.griffith.authorFellows, Christy S.
gro.griffith.authorBurford, Michele A.
gro.griffith.authorCook, Andrew J.


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